Energy performance of a bedroom task/ambient air conditioning (TAC) system applied in different climate zones of China
Abstract
Here, task/ambient air conditioning (TAC) system applied to bedrooms has been investigated and its energy efficient performance reported. To promote the application of bedroom TAC to a larger region, a numerical study was carried out on a bedroom TAC system applied in five different climate zones. To simplify the numerical study, response surface methodology (RSM) was used to predict operating power of TAC based on CFD results. It's found that the daily energy consumption in the typical day was from 0 kWh in Kunming to 1.27 kWh in Shanghai, the averaged daily energy consumption varied from 0.47 kWh in June to 0.56 kWh in August for Guangzhou, and the total energy consumption in summer ranged from 0 kWh in Kunming to 58.33 kWh in Guangzhou. Meanwhile, the operating time of the TAC were also different between these five cities. In order to save energy, different set points of toz (average air temperature in the occupied zone) were investigated. Additionally, it's found that increasing the toz from 24 to 25 °C can reduce energy consumption by about 23.42% in Shanghai to 36.23% in Beijing. Besides, the energy saving potential using two operating modes were compared: variable air flow rate and variablemore »
- Authors:
-
- China University of Petroleum, Qingdao, Shandong (China). Department of Gas Engineering, College of Pipeline and Civil Engineering; Shandong Provincial Key Laboratory of Oil & Gas Storage and Transportation Safety, Qingdao, Shandong (China)
- China University of Petroleum, Qingdao, Shandong (China). Department of Gas Engineering, College of Pipeline and Civil Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Shandong Provincial Key Laboratory of Oil & Gas Storage and Transportation Safety, Qingdao, Shandong (China)
- The University of Tokyo, Chiba (Japan). Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences
- Zhejiang University of Technology, Hangzhou (China). Institute of Process Equipment and Control Engineering
- The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR (China). Department of Building Services Engineering
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1474605
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Energy (Oxford)
- Additional Journal Information:
- Journal Name: Energy (Oxford); Journal Volume: 159; Journal Issue: C; Journal ID: ISSN 0360-5442
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; Bedroom TAC system; Operating power; Energy consumption; Climate zone; Buildings
Citation Formats
Mao, Ning, Hao, Jingyu, Cui, Borui, Li, Yuxing, Song, Mengjie, Xu, Yingjie, and Deng, Shiming. Energy performance of a bedroom task/ambient air conditioning (TAC) system applied in different climate zones of China. United States: N. p., 2018.
Web. doi:10.1016/j.energy.2018.06.211.
Mao, Ning, Hao, Jingyu, Cui, Borui, Li, Yuxing, Song, Mengjie, Xu, Yingjie, & Deng, Shiming. Energy performance of a bedroom task/ambient air conditioning (TAC) system applied in different climate zones of China. United States. https://doi.org/10.1016/j.energy.2018.06.211
Mao, Ning, Hao, Jingyu, Cui, Borui, Li, Yuxing, Song, Mengjie, Xu, Yingjie, and Deng, Shiming. Fri .
"Energy performance of a bedroom task/ambient air conditioning (TAC) system applied in different climate zones of China". United States. https://doi.org/10.1016/j.energy.2018.06.211. https://www.osti.gov/servlets/purl/1474605.
@article{osti_1474605,
title = {Energy performance of a bedroom task/ambient air conditioning (TAC) system applied in different climate zones of China},
author = {Mao, Ning and Hao, Jingyu and Cui, Borui and Li, Yuxing and Song, Mengjie and Xu, Yingjie and Deng, Shiming},
abstractNote = {Here, task/ambient air conditioning (TAC) system applied to bedrooms has been investigated and its energy efficient performance reported. To promote the application of bedroom TAC to a larger region, a numerical study was carried out on a bedroom TAC system applied in five different climate zones. To simplify the numerical study, response surface methodology (RSM) was used to predict operating power of TAC based on CFD results. It's found that the daily energy consumption in the typical day was from 0 kWh in Kunming to 1.27 kWh in Shanghai, the averaged daily energy consumption varied from 0.47 kWh in June to 0.56 kWh in August for Guangzhou, and the total energy consumption in summer ranged from 0 kWh in Kunming to 58.33 kWh in Guangzhou. Meanwhile, the operating time of the TAC were also different between these five cities. In order to save energy, different set points of toz (average air temperature in the occupied zone) were investigated. Additionally, it's found that increasing the toz from 24 to 25 °C can reduce energy consumption by about 23.42% in Shanghai to 36.23% in Beijing. Besides, the energy saving potential using two operating modes were compared: variable air flow rate and variable air temperature.},
doi = {10.1016/j.energy.2018.06.211},
journal = {Energy (Oxford)},
number = C,
volume = 159,
place = {United States},
year = {Fri Jun 29 00:00:00 EDT 2018},
month = {Fri Jun 29 00:00:00 EDT 2018}
}
Web of Science
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